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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 737 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) violet-green-orange (b) green-violet-yellow (c) green-violet-orange (d) green-violet-red
  5. 5.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) blue-white-red (c) blue-white-orange (d) white-blue-orange
  14. 14.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) blue-grey-red (b) grey-blue-brown (c) grey-blue-red (d) grey-blue-orange
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) violet-blue-black (b) grey-blue-black (c) violet-blue-brown (d) blue-violet-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-brown (c) red-green-orange (d) red-green-red
  21. 21.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) red-white-black (b) brown-white-brown (c) white-brown-black (d) brown-white-black
  24. 24.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does red stand for?
  26. 26.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-red (b) yellow-violet-orange (c) violet-yellow-orange (d) violet-yellow-yellow
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) yellow-yellow-black (b) orange-yellow-brown (c) orange-yellow-black (d) yellow-orange-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) red-yellow-orange (b) yellow-red-orange (c) yellow-red-red (d) yellow-red-yellow
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) orange-brown-brown (c) orange-brown-black (d) yellow-brown-black
  39. 39.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does black stand for?

Answer key

  1. the one nearest an end
  2. 100
  3. 5 %
  4. green-violet-orange
  5. 3600
  6. 20
  7. 7.9
  8. 94000
  9. 83000
  10. 1
  11. 93
  12. 820
  13. blue-white-orange
  14. 28
  15. 9300
  16. grey-blue-red
  17. 7
  18. 270
  19. violet-blue-black
  20. red-green-red
  21. 10
  22. 12000
  23. brown-white-black
  24. 5.4
  25. 2
  26. 26
  27. violet-yellow-orange
  28. 4
  29. 430
  30. 920
  31. 3
  32. 70
  33. 94
  34. 7.4
  35. orange-yellow-black
  36. yellow-red-orange
  37. 8
  38. orange-brown-black
  39. 740
  40. 0

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